Write elements into XML

[teognost]

Hi
I have a list of elements -like {Accounting.Iface;Accounting.Service} which are read one by one in a loop step (separator is ; ) and then I need to write every element in a XML file like below(ModuleMask value is the current element):

<Filters>
<IncludeFilters>
<FilterEntry>
<ModuleMask>Accounting.Iface</ModuleMask>
<ClassMask>*</ClassMask>
<FunctionMask>*</FunctionMask>
</FilterEntry>
<FilterEntry>
<ModuleMask>Accounting.Service</ModuleMask>
<ClassMask>*</ClassMask>
<FunctionMask>*</FunctionMask>
</FilterEntry>
</IncludeFilters>

I tried to use the WriteXml step but problem is the final result is
<Filters>
<IncludeFilters>
<FilterEntry>
<ModuleMask>Accounting.Service</ModuleMask>
<ClassMask>*</ClassMask>
<FunctionMask>*</FunctionMask>
</FilterEntry>
</IncludeFilters>
so the ModuleMask element is updated but not added again with a new value
Any idea how can I make it to add a new FilterEntry for each element in the loop?
I activated the options "Create element\attribute if it does not exist" and "Update all matching nodes" but it does not help